<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
	</head>
	<body>
		<script type="text/javascript">
			var a='one';
			function test(){
				b='three';
				var a='two';
				console.log(a);
			}
			test();
			for(let x=0;x<3;x++){
				console.log(x);
			}
			console.log(a);
			console.log(b);
			console.log(x);
		</script>
	</body>
</html>
